/* 清除 margin 和 padding */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

/* 设置 HTML5 元素的显示方式为块 */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}

/* 设置 body 的基础样式 */
body {
  line-height: 1;
}

/* 清除 ul 和 ol 的默认样式 */
ol, ul {
  list-style: none;
}

/* 清除 blockquote 和 q 的默认引号样式 */
blockquote, q {
  quotes: none;
}

blockquote::before, blockquote::after,
q::before, q::after {
  content: '';
  content: none;
}

/* 设置表格相关样式 */
table {
  border-collapse: collapse;
  border-spacing: 0;
}
